37's on 2012 with 4:10's
- Thread starter berry2k
- Start date
honestly, it does great and i'm very happy with it. even with just factory 4.10 gears, it's still got a lot of power.
depends on how hard i drive. if i give it a lot of gas and pass (yes, pass) slower cars on the highway, maybe 13-14 mpg. if i drive conservatively, more like 17.
berry2k
New member
you said pass (a word I don't understand) since I owned a tj and my friend owns a 08 jk we are the slow cars.
:cheesy: too funny.
piginajeep
The Original Smartass
i dont believe you will ever see 17 :cheesy:
FWIW
I have to agree. We are really happy with 37's and 4:10's. We're not cheaters like Eddie. Ours is a 6 speed
on the way up to moab, mituk was having some issues and so we had to drive really slow - 65 mph max and got really good mpg. but, since then, we're doing more like 13.5-14.5. of course, we live in the hills and of course, you know how i drive
LOL!! no need to hate, you know that our white JK is a 6-speed so we're only part time cheaters
oh man, our 2012 with 4.10's running 37's is more powerful than our white JK ever was running 5.13's and 35's. as mentioned, we can pass people on the highway - something unheard of in an older JK :crazyeyes:
The Wandering Jeeper
Caught the Bug
Let me toss my 2 cents in here. I've got 37X12.50X17 Goodyear MT/R's with 5:13 gears. Automatic with a 3.6 (2012 JKRU). I do have an aFe intake and a Banks Cat Back. At 70 MPH I am turning 2750 RPM's in overdrive. On the highway I average 16.8-17.1 mpg. Around town, daily driving, I am getting 14.9-15.3. Around town I tend to use the skinny peddle a bit more. Also, driving thru the mountains of Colorado seems to have no effect with the gears on performance or mpg.
I was worried that it might be geared to high however with the new 5 speed auto it has turned out well.
Brian
I was worried that it might be geared to high however with the new 5 speed auto it has turned out well.
Brian